Manual:System/Health
Summary
Hardware that supports monitoring will display different information about hardware status, like temperature, voltage.
Voltage
Routers that support voltage monitoring will display supplied voltage value. In CLI/Winbox it will display volts. In scripts/API/SNMP this will be dV or value showed in CLI/Winbox multiplied by 10
Temperature
Routers that support temperature monitoring will display temperature reading. In CLI/Winbox it will display degrees Celsius. In scripts/API/SNMP this will be value showed in CLI/Winbox multiplied by 10
Fan control
Using this menu users will be able to control fan behaviour on the router.
Warning: for auto mode to work you have to use fans that support monitoring (it will have 3 wires) If you have fan with only 2 wires (V+,GND) then you have to set fan-mode to manual. If control pulse cannot be detected, then router will switch between main and auxiliary fan and stop only when it detects fan with control